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arXiv 0903.5320astro-ph.COastro-ph.HE
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X射线星系团宇宙学

X-ray Cluster Cosmology

A. Vikhlinin, S. Murray, R. Gilli, P. Tozzi, M. Paolillo, N. Brandt, G. Tagliaferri, M. Bautz, S. Allen, M. Donahue, A. Evrard, K. Flanagan, P. Rosati, S. Borga… 展开作者

A. Vikhlinin, S. Murray, R. Gilli, P. Tozzi, M. Paolillo, N. Brandt, G. Tagliaferri, M. Bautz, S. Allen, M. Donahue, A. Evrard, K. Flanagan, P. Rosati, S. Borgani, R. Giacconi, M. Weisskopf, A. Ptak, D. Alexander, G. Pareschi, W. Forman, C. Jones

摘要:

WFXT可以进行灵敏的广域X射线巡天,探测到大量的维里化天体样本,这些天体的质量范围从次星系群到最大质量的星系团,并在红移方面延伸到z=2以上。这些样本将是一个很好的数据集进行许多传统的宇宙学测试使用集群的质量函数和功率谱。独特的是,WFXT将不仅能够探测星系团,而且能够从调查数据中对大量的星系团和星系团进行详细的X射线测量。在很宽的质量、空间尺度和红移范围内,对星团质量函数和空间相关性进行高质量的测量,将有助于扩大宇宙学发现的空间,特别是在寻找“和谐”Lambda-CDM宇宙学模型的偏离方面。发现这种偏离将对我们理解支配宇宙的基本物理学产生深远的影响。

英文摘要:

Sensitive, wide-area X-ray surveys which would be possible with the WFXT will detect huge samples of virialized objects spanning the mass range from sub-groups to the most massive clusters, and extending in redshift to beyond z=2. These samples will be an excellent dataset for carrying out many traditional cosmological tests using the cluster mass function and power spectrum. Uniquely, WFXT will be able not only to detect clusters but also to make detailed X-ray measurements for a large number of clusters and groups right from the survey data. Very high quality measurements of the cluster mass function and spatial correlation over a very wide range of masses, spatial scales, and redshifts, will be useful for expanding the cosmological discovery space, and in particular, in searching for departures from the "concordant" Lambda-CDM cosmological model. Finding such departures would have far-reaching implications on our understanding of the fundamental physics which governs the Universe.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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